Product Manager Handbook - Interviews w/ product managers + weekly newsletter
Calligraphy - Custom fonts for Android
Everything.PM - 300+ resources & tools for PMs, sorted by votes
Ucraft - Ucraft is a drag and drop based website builder tool.
PM Starter Pack - Practical guide on how to get started in product management
UXmeter - Like Tinder, but for finding the hottest web design in town